Replace index_in_[sub]str_array with index_in_[sub]strings,
which scans thru "abc\0def\0123\0\0" type strings. Saves 250 bytes.

   text    data     bss     dec     hex filename
 781266    1328   11844  794438   c1f46 busybox_old
 781010    1328   11844  794182   c1e46 busybox_unstripped

diff --git a/selinux/chcon.c b/selinux/chcon.c
index 689ec8c..6e98c4a 100644
--- a/selinux/chcon.c
+++ b/selinux/chcon.c
@@ -117,7 +117,7 @@
 	"range\0"          Required_argument "l"
 	"verbose\0"        No_argument       "v"
 	"reference\0"      Required_argument "\xff" /* no short option */
-	"\0";
+	;
 #endif
 
 int chcon_main(int argc, char **argv);
diff --git a/selinux/runcon.c b/selinux/runcon.c
index 3502dcd..5f9e3fd 100644
--- a/selinux/runcon.c
+++ b/selinux/runcon.c
@@ -76,7 +76,7 @@
 	"range\0"   Required_argument "l"
 	"compute\0" No_argument "c"
 	"help\0"    No_argument "h"      
-	"\0";
+	;
 #endif
 
 #define OPTS_ROLE	(1<<0)	/* r */